[Struggler is youth] Cracking the gene password of the wheat screen disease

【Struggler Zheng Youth】

Cracking the genetic password of the wheat giant mold

——Senges in the 26th "China Youth May 4th Medal Collective" crop biology National Key Laboratory Wheat Genomey Innovation and Utilization Team

Bright Daily reporter Luo Xu

After the seedlings, it is the season of wheat. In Tai'an, Shandong, the rolling Mailang told the joy of harvest.

Just after 7 in the morning, a group of young people worked hard in the Jin Chancan wheat field. Harvest, bundle, classification, mark, and a set of movements.

The face was tanned by the scorching sun, and his hand was rough by Mai Mang. These young people who are "working farmers" are not ordinary. As a member of Wheat Genomey and Utilization Team Members of Shandong Agricultural University's crop biology national key laboratory, they have been at the forefront of the world of agricultural technology at a young age, successfully cracking the genetic password of the "cancer" of wheat, and the results are selected for the selection of academicians of the two hospitals. "Top Ten Science and Technology Progress in China in 2020".

Wheat is the second largest food crop in my country and the main rations of northerners. "Farmers grow wheat, and are most afraid of wheat's illness, especially at giant mold." Kong Linglang, Dean of the Agricultural University of Shandong Agricultural University and the Deputy Director of the National Key Laboratory of Crop Biology, introduced, "This disease is called wheat 'cancer', which can lead Significantly reduced production, and the generated mold toxins seriously endanger human and animal health or even carcinogenic. How to cultivate disease -resistant varieties and overcome wheat's scientific disease from the source is a worldwide problem in the field of agricultural science and technology. "

The "Chinese rice bowl" is focused on agricultural scientific and technological innovation. In 2008, Kong Ling, who had just returned from overseas to study abroad, made a non -stop horse. He formed a youth scientific research team at Shandong Agricultural University, taking the lead in finding the road to find excellent genes against the scruited of wheat.

"The wheat genome is huge, with 120,000 genes. From it, a anti -gymnevial ​​gene is found, and some like the sea to fish." Wang Hongwei, a member of the team and professor of Shandong Agricultural University Agricultural College, frankly challenged the unknown science. Normal.

"Crop research, you must sit on the cold bench." Lu Zhongxuan, a member of the team, and doctoral student of the Agricultural College of Shandong Agricultural University, said, "The growth cycle of wheat in the field is generally more than 230 days, and there are more than 3 stubble in the greenhouse in the greenhouse. Month. If there is an error in a link, you need to wait for another growth cycle. "

The cold and the summer, year after year, how many attempts and setbacks have been experienced. In the screening research, the team found that the 7E chromosome long -arm of the 7E chromosomal body of wheat's close plants contains giant mold disease antigen. "However, there are thousands of genes at the end of the chromosome. Which one is our goal? There are still a lot of work to do." Said Sun Silong, a team member and associate professor at Shandong Agricultural University.

In the next three years, the team analyzed 25,000 wheat. The genetic amplification experiment alone did at least 300,000 times, and everyone soaked in the laboratory for more than 14 hours a day. Fortunately, the Tiandao rewarded diligence, and they finally narrowed the positioning of the disease resistance gene to two genes.

The dawn was in front, but it was in a dark moment. One night in the spring of 2019, Wang Hongwei and Sun Silong overturned the previous conclusions after a discussion. At that time, both of them were desperate, and Wang Hongwei even slept overnight. In the early morning of the next day, the two unwilling young people gathered in the laboratory and sorted out and demonstrated experimental data from the beginning. In the end, they unanimously judged that the previous conclusions were not wrong, and it was inferred that one of the genes was the answer for everyone for many years.

Next, the inferred results were used to demonstrate the inference results. "It seems that there is only one step away, but it is actually the end of the world." Wang Hongwei said, "The team has to repeatedly build a group in the field, take materials to complete the gene cloning, and then analyze the disease resistance mechanism in the laboratory. This is another long process. ","

"After more than a year of integrated wisdom, the team finally confirmed that the wheat 'cancer' -clinge -the main effect of anti -gymium disease gene FHB7." Sun Silong introduced that in May 2020, the top international academic journal "Science" was based on The cover article published this original innovation result. At present, the team created by the team has provided more than 60 domestic breeding units in China. The first wheat variety "Shannong 48", which contains anti -gibrium genes FHB7, has been formally approved and promoted nationwide in 2021.

Youth relay, for a long time. "In more than ten years, we have cultivated a team that has a 'heart with me and is sincerely reported." Kong Linglang said that the team members have worked hard in scientific research practice, and the national outstanding professional and technical talents and the Ministry of Agriculture and Rural Ministry have emerged. Advanced models such as agricultural scientific research outstanding talents "and outstanding Communist Party members in the country. Today, for scientific problems such as biodegradation applications of anti -gymiopathy genes, this team with an average age of only 30 years has opened a new scientific research.

Use struggle to brighten the youth background, and do the heavy responsibility of the times. "Agricultural scientific research is a hopeful job. Every time I see wheat seedlings, I will rise in a new period in my heart." Lu Zhongxuan said, "We will continue to aim at the" card neck "technical problem that restricts the development of modern agriculture. He struggled to climb the peak, and to ensure that the national food security hand over the innovation answer sheet of youth in the new era. "

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